Guess what Meerka you should be fucking alarmed at animals like OP's FIL. If you're a parent go ahead and be alarmed and outraged That IS the right fucking response!!!!"!!
whatifIdid I've directly seen and had to deal with the results of more sexual abuse of children than I ever want to remember.
We also have a registered paedophile living at the end of the street. I have two small children, so how to keep them safe is quite a heavy concern of mine.
If there's one thing that's become clear, it's that people (me included) need practical ways to keep their children safe and cope with known paedophiles near to them. Hysterical exhortations to be alarmed and outraged are really not remotely helpful.
I've a helluva lot more respect for people who try to work with paedophiles to limit the appalling damage they do, than people who just scream about how awful they are and call them animals. That doesn't help anything unless you're able to put all people convicted (or even suspected?) of paedophilia on an island.
Btw the FIL is a human being. Same species as you, much as you might not like that fact.
The OP probably has left this thread but what they need is pragmatic advice on how to handle this awful situation. Her husband has to find a way to reconcile his Dad whom he probably loves with being someone who's watched these images. She has to cope with knowing that her children's grandfather has these awful urges. She is going to have to work out how to keep their children safe, how to help her husband. There's probably a lot of marital strain over this.
Hope you can slowly come to terms with all this OP and find a constructive way forward.
It could be worth contacting social workers or counsellors specializing in sexual deviance to find out if there are any organisations to help people in your situation. It might also be an idea to look for specialist forums where there are other families in the same incredibly difficult position.